Uri Blass wrote:Marc MP wrote:GS wrote:...
Please include Rylka 1.0beta in those tests I wanna see how near
they are

Regards,
Guenther
I started a 100 game match at 40/3, 32M hash (for Rybka Beta), 12-moves book on my 2400mhz pentium. My prediction is 56-44 for Rybka.
Actually Strelka plays very much like Rybka beta, almost no chess knowledge (especially endgames). I'm manually testing Strelka on arasan7.epd at 20sec per moves and it is currently doing 37/50 while Rybka Beta Default (very positional) had 39/50 and Rybka beta-very tactical- had 42/50. So for now it seems a bit weaker tactically.
I disagree.
Rybka beta has a lot of chess knowledge.
You cannot win games without chess knowledge and rybka is winning games.
Uri
Hi Uri,
I think I changed my mind now about Strelka (and/or Rybka beta) chess knowledge.
I judged too early before. Have a look at the following position:
[D]rnb1kb1r/2q2p1p/p2ppp2/5P2/1p1NP3/2N2Q2/PPP3PP/R3KB1R w KQkq - 0 1
Strelka seems to see a lot of compensation for a piece sacrifice while many other engines do not.
I'm not sure but the sacrifice looks good, retreating the knight is very passive (it must be a book line)
but I dont have data on this computer to verify).
Rybka 1.0 Very Positional
00:02:28.4 0,16 13 4929117 Nd1 Qb6 Qf2 Nc6 Nxc6 Qxc6 Bd3 Rg8 O-O Be7
Rybka 1.0 Very Tactical
00:01:46.9 0,16 13 3531173 Nd1 Qb6 Qf2 Nc6 Nxc6 Qxc6 Bd3 Rg8 O-O Be7
Spike 1.2
00:01:39.6 0,98 14 45769443 Nd1 Qb6 c3 Nc6 Nxc6 Qxc6 Bd3 exf5 cxb4 Rb8 a3 Rg8 Ne3 Bh6 Nd5 fxe4 Bxe4
CT 2007.1
00:01:04.4 0,19 18 30761240 Nd1 e5 Nb3 Bb7 Ne3 Nd7 Bd3 a5 Qh5 a4 Nd2 a3 Bc4 Nc5 Bb5+ Ke7 Bc4 Ke8
Glaurung 1.2.1
00:00:02.1 -0,09 9 289170 fxe6 bxc3 Qxf6 cxb2 Rb1 Qa5+ Kd1 Qe5 Qxf7+ Kd8 c3 Bh6
00:00:02.3 0,04 9 350541 Ncb5 axb5 fxe6 Bg7 Bxb5+ Kf8 e5 d5 O-O Bxe6 Nxe6+ fxe6 exf6
00:00:03.7 0,26 10 601517 Ncb5 axb5 fxe6 Bg7 Bxb5+ Kf8 Qh5 Qe7 Nf5 Qxe6 O-O Qxe4 Nxd6
00:00:06.5 0,26 11 1142462 Ncb5 axb5 fxe6 Bg7 Bxb5+ Kf8 Qh5 Qe7 Nf5 Qxe6 O-O Qxe4 Nxd6
00:00:16.2 0,25 12 3008178 Ncb5 axb5 Bxb5+ Ke7 fxe6 fxe6 O-O Bg7 e5 dxe5 Qxa8 exd4 Rae1
00:00:39.7 0,00 13 7622772 Ncb5 axb5 fxe6 Bg7 Bxb5+ Kf8 Qg4 Na6 Bc6 Rb8 Bd7 h5 Qf5 Nc5
00:01:30.6 0,09 13 17773606Nd1 Qc5 Nb3 Qe5 fxe6 fxe6 Ne3 Bb7 Ng4 Qxb2 Qxf6 Qxf6 Nxf6+ Ke7
Only Glaurung is tempted at some point by Ncb5. Now Strelka
Strelka 1.0
00:00:00.0 0,06 1 42 fxe6 bxc3 exf7+ Kxf7 bxc3
00:00:00.0 0,32 1 99 e5 bxc3 Qxa8 cxb2
00:00:00.0 0,40 1 181 Na4
00:00:00.0 0,05 2 361 Na4 Nc6
00:00:00.0 0,32 2 466 e5 bxc3 Qxa8 cxb2
00:00:00.1 -0,37 3 3659 e5 d5 exf6 bxc3 bxc3 exf5
00:00:00.1 -0,04 3 4398 Na4 e5 Nb3 Qxc2
00:00:00.1 0,06 3 5097 fxe6 bxc3 exf7+ Kxf7 bxc3
00:00:00.1 -0,30 4 7523 fxe6 bxc3 exf7+ Kxf7 bxc3 Nc6 Bc4+ Kg7
00:00:00.1 -0,04 4 8126 Na4 e5 Nb3 Qxc2
00:00:00.1 -0,01 4 12607 Nce2 e5 Kf2 exd4 Nxd4
00:00:00.1 -0,01 5 16015 Nce2 e5 Nb3 Qxc2 Rc1
00:00:00.2 0,19 6 33032 Nce2 e5 Nb3 Bh6 Qh3 Bg5
00:00:00.3 0,52 6 62821 Ncb5 axb5 fxe6 fxe6 Bxb5+ Ke7 O-O Bg7
00:00:00.4 0,61 7 93449 Ncb5 axb5 fxe6 Nc6 Bxb5 Bb7 Qxf6
00:00:00.6 0,76 8 171452 Ncb5 axb5 fxe6 fxe6 Bxb5+ Ke7 O-O Nd7 Qh5 Bb7
00:00:01.1 0,95 9 380481 Ncb5 axb5 Bxb5+ Bd7 fxe6 Bxb5 Qxf6 fxe6 Nxb5 Qg7 Qxe6+ Qe7
00:00:01.6 0,57 10 656721 Ncb5 axb5 Bxb5+ Ke7 fxe6 fxe6 O-O Bg7 Qg4 Rg8 Kh1 f5 exf5 exf5 Nxf5+ Bxf5 Qxf5 Bxb2 Qxh7+ Rg7
00:00:04.8 0,35 11 2333231 Ncb5 axb5 fxe6 fxe6 Qxf6 Bg7 Bxb5+ Nc6 Bxc6+ Qxc6 Qxg7 Qxe4+ Kd1 Rf8 Re1
00:00:08.6 0,48 12 4466477 Ncb5 axb5 fxe6 fxe6 Qxf6 Bg7 Bxb5+ Nc6 Bxc6+ Qxc6 Qxg7 Qxe4+ Kd2 Rf8 Rae1 Rf2+ Kc1 Qf4+ Kb1
00:00:19.7 0,64 13 10721884 Ncb5 axb5 fxe6 Be7 Bxb5+ Kf8 exf7 Qc5 Rd1 Kxf7 O-O Ra5 Qd3 Kg7 Bc4
00:00:36.7 0,46 14 20412549 Ncb5 axb5 fxe6 Be7 Bxb5+ Kf8 exf7 Qc5 Rd1 Kxf7 O-O Ra5 Qb3+ Kg7 Bc4 Bg4 Rd2
00:01:18.2 0,48 15 44438585 Ncb5 axb5 fxe6 Be7 Bxb5+ Kf8 exf7 Qc5 Rd1 Kxf7 O-O Ra5 Ba4 Kg7 Bb3 Ba6 Qg4+ Kh6
00:03:09.8 0,39 16 108900430 Ncb5 axb5 fxe6 Be7 Bxb5+ Kf8 exf7 Qc5 Rd1 Kxf7 O-O Ra5 Ba4 Kg7 Bb3 Bd7 Qe3 Qg5
00:05:22.6 0,39 16 183131732 Ncb5 axb5 fxe6 Be7 Bxb5+ Kf8 exf7 Qc5 Rd1 Kxf7 O-O Ra5 Ba4 Kg7 Bb3 Bd7 Qe3 Qg5
00:05:23.2 0,39 16 183131732 Ncb5 axb5 fxe6 Be7 Bxb5+ Kf8 exf7 Qc5 Rd1 Kxf7 O-O Ra5 Ba4 Kg7 Bb3 Bd7 Qe3 Qg5
Interesting!!
What is correct is the lack of basic endgame knowledge by Strelka, have a look:
[D]4k3/8/8/8/3B4/4B3/5B2/4K3 w - - 0 1
00:00:01.8 9,98 12 1943208 Bh8 Kd7 Bg5 Kc6 Kd2 Kb5 Kd3 Ka4 Kc4 Ka3 Be1 Ka4
[D]4k3/8/8/8/8/4N3/4N3/4K3 w - - 0 1
00:00:04.3 5,60 15 4772409 Nc4 Ke7 Nf4 Kd7 Nd5 Kc6 Ne7+ Kd7 Nf5 Kd8 Nd4 Kc7 Nb2 Kd8 Nd3 Kd7
[D]7k/8/8/8/7P/7P/7P/4K3 w - - 0 1
00:00:13.4 3,86 30 14912667 Ke2 Kg7 Kf3 Kh6 Kg4 Kg6 h5+ Kf6 Kf4 Kf7 Kg5 Kg7 Kf5 Kh6 Kg4 Kg7 Kg5 Kh7 h6
Kh8 Kg6 Kg8 h4 Kh8 Kg5 Kh7 h5 Kh8 Kg4 Kg8 Kf5
[D]4k3/8/8/8/8/8/7P/4K3 w - - 0 1
00:00:05.7 1,97 18 6889538 Kf2 Ke7 Kg3 Ke6 Kg4 Kf6 h4 Kg7 Kg5 Kf7 h5 Kg7 h6+ Kg8 Kh5 Kh8 Kg6 Kg8 Kf5
[D]8/r7/2k5/8/8/8/5N2/4KR2 w - - 0 1
00:00:04.1 2,86 14 4283895 Rh1 Re7+ Kf1 Re6 Rh8 Re7 Rh3 Rf7 Rc3+ Kd7 Rc1 Re7 Ra1 Re6 Rb1 Rf6
[Event "Strelka-CT20071(5positions),"]
[Site "AMD Athlon, 1.4 Ghz 256M RAM"]
[Date "2007.5.5"]
[Round "1"]
[White "Strelka 1.0"]
[Black "Chess Tiger 2007.1"]
[Result "1/2-1/2"]
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Bxf6 gxf6 9. Qf3
{+0.47/11} 9... b5 {-0.08/13} 10. f5 {+0.57/12} 10... b4 {-0.08/15} 11. Ncb5
{+0.48/12} 11... axb5 {+0.28/14} 12. fxe6 {+0.48/11} 12... Bg7 {+0.08/14} 13. Bxb5+
{+0.76/10} 13... Kf8 {+0.21/13} 14. e5 {+0.68/11} 14... d5 {+0.76/13} 15. O-O-O
{+1.34/11} 15... fxe6 {+0.48/14} 16. exf6 {+1.62/11} 16... Bh6+ {+0.22/13} 17. Kb1
{+1.72/11} 17... Qf7 {-0.02/13} 18. Rhe1 {+1.81/11} 18... Rg8 {-0.83/15} 19. Nf5
{+1.48/11} 19... Rg6 {-1.26/15} 20. Nd6 {+2.11/11} 20... Qxf6 {-1.24/14} 21. Qxf6+
{+2.00/11} 21... Rxf6 {-1.42/12} 22. Nxc8 {+2.05/13} 22... Ra5 {-1.17/14} 23. Rf1
{+1.69/13} 23... Bg7 {-1.20/15} 24. Rxf6+ {+1.52/14} 24... Bxf6 {-1.63/12} 25. Rf1
{+1.48/14} 25... Kg7 {-1.13/14} 26. Be8 {+1.45/14} 26... Ra6 {-1.03/14} 27. Bh5
{+1.41/13} 27... Rc6 {-1.06/15} 28. Na7 {+1.31/13} 28... Rb6 {-0.90/14} 29. Rf3
{+1.21/14} 29... Nd7 {-0.85/15} 30. Nc8 {+1.07/14} 30... Rc6 {-0.67/14} 31. Be8
{+1.11/14} 31... Rxc8 {-0.60/15} 32. Rg3+ {+1.05/15} 32... Kf8 {-0.37/14} 33. Bxd7
{+0.74/16} 33... Rc4 {-0.46/13} 34. Rh3 {+0.74/15} 34... Rg4 {-0.35/12} 35. g3
{+0.75/15} 35... Rg7 {-0.30/13} 36. Bb5 {+1.13/15} 36... Bg5 {-0.37/13} 37. c4
{+0.87/15} 37... bxc3 {-0.37/13} 38. bxc3 {+0.91/15} 38... Ke7 {-0.57/13} 39. a4
{+0.89/15} 39... Kd6 {-0.37/12} 40. Rh5 {+0.83/15} 40... h6 {-0.48/11} 41. c4
{+0.81/15} 41... Rc7 {-0.22/16} 42. cxd5 {+0.75/13} 42... exd5 {-0.32/15} 43. h4
{+0.83/15} 43... Bd2 {-0.30/15} 44. g4 {+0.88/14} 44... Rc3 {-0.26/14} 45. Rf5
{+0.64/14} 45... d4 {-0.17/14} 46. Rf2 {+0.65/13} 46... Be1 {-0.46/14} 47. Rf6+
{+0.44/13} 47... Ke5 {-0.21/13} 48. Rxh6 {+0.77/14} 48... d3 {-0.61/12} 49. a5
{+0.60/13} 49... d2 {-0.88/12} 50. Be2 {+0.55/13} 50... Bf2 {-0.87/12} 51. a6
{+0.72/13} 51... Bd4 {-0.93/12} 52. Ka2 {+0.00/14} 52... Re3 {-0.96/12} 53. Bd1
{+0.00/15} 53... Rc3 {-0.89/13} 54. g5 {+0.00/15} 54... Rc1 {-0.96/12} 55. Be2
{+0.00/15} 55... Re1 {-0.93/11} 56. Bh5 {+0.00/15} 56... Rc1 {-1.08/12} 57. Kb3
{+0.56/12} 57... Rc3+ {-1.08/12} 58. Kb4 {+2.11/10} 58... Kd5 {-1.20/11} 59. Be2
{+1.54/12} 59... Rh3 {-1.17/11} 60. Bd1 {+1.06/13} 60... Rh1 {-1.23/11} 61. Bf3+
{+0.77/13} 61... Ke5 {-1.02/1} 62. Rh7 {+0.74/14} 62... Kf4 {-1.40/11} 63. Be2
{+2.31/11} 63... Ke4 {-1.45/11} 64. a7 {+2.53/11} 64... Ra1 {-1.58/12} 65. g6
{+2.88/12} 65... Bxa7 {-1.52/11} 66. Re7+ {+2.03/13} 66... Kd4 {-0.98/12} 67. Rd7+
{+1.30/14} 67... Ke3 {-0.63/13} 68. g7 {+1.28/14} 68... Rg1 {-0.71/14} 69. Re7+
{+1.34/14} 69... Kf2 {-0.71/14} 70. Bh5 {+0.88/14} 70... Bd4 {-0.66/14} 71. Re2+
{+1.77/12} 71... Kf1 {-0.61/15} 72. Rxd2 {+1.77/12} 72... Bxg7 {-0.67/11} 73. Bd1
{+1.78/11} 73... Bh6 {-0.69/13} 74. Rd8 {+1.79/11} 74... Kf2 {-0.61/15} 75. h5
{+1.78/10} 75... Ke3 {-0.62/14} 76. Kc4 {+1.83/10} 76... Ke4 {-0.61/13} 77. Rd6
{+1.92/11} 77... Be3 {-0.58/12} 78. h6 {+1.92/11} 78... Rxd1 {+0.00/14} 79. Rxd1
{+1.92/15} 79... Bxh6 {+0.00/24} 80. Rd4+ {+1.92/22} 80... Ke5 {+0.00/59} 81. Rd5+
{+1.92/25} 81... Ke4 {+0.00/59} 82. Rd7 {+1.92/24} 82... Bf4 {+0.00/59} 83. Rd8
{+1.92/27} 83... Bg3 {+0.00/59} 84. Re8+ {+1.92/21} 84... Be5 {+0.00/59} 85. Kb3
{+1.92/25} 85... Kd4 {+0.00/59} 86. Ra8 {+1.92/26} 86... Bf4 {+0.00/59} 87. Rd8+
{+1.92/25} 87... Ke4 {+0.00/59} 88. Rd7 {+1.92/29} 88... Be5 {+0.00/59} 89. Rh7
{+1.92/29} 89... Kd4 {+0.00/59} 90. Rh4+ {+1.92/25} 90... Kd3 {+0.00/59} 91. Rh3+
{+1.92/28} 91... Ke4 {+0.00/59} 92. Kc4 {+1.92/28} 92... Bf4 {+0.00/59} 93. Rh8
{+1.92/28} 93... Be5 {+0.00/59} 94. Rh4+ {+1.92/26} 94... Bf4 {+0.00/59} 95. Kb3
{+1.92/30} 95... Ke3 {+0.00/59} 96. Rh3+ {+1.92/31} 96... Kd4 {+0.00/59} 97. Rh8
{+1.92/32} 97... Bg5 {+0.00/59} 98. Rf8 {+1.92/29} 98... Be3 {+0.00/59} 99. Rd8+
{+1.92/31} 99... Ke4 {+0.00/59} 100. Re8+ {+1.92/31} 100... Kd4 {+0.00/59} 101. Rg8
{+1.92/33} 101... Bf4 {+0.00/59} 102. Rc8 {+1.92/32} 102... Be5 {+0.00/59} 103. Rc1
{+1.92/32} 103... Ke4 {+0.00/59} 104. Re1+ {+1.92/31} 104... Kd5 {+0.00/59}
105. Re2 {+1.92/32} 105... Kd6 {+0.00/59} 106. Rd2+ {+1.92/27} 106... Ke7
{+0.00/59} 107. Ra2 {+1.92/27} 107... Kd6 {+0.00/59} 108. Ra6+ {+1.92/29} 108... Kd5
{+0.00/59} 109. Ra5+ {+1.92/32} 109... Ke4 {+0.00/59} 110. Ra8 {+1.92/33} 110... Kd4
{+0.00/59} 111. Rd8+ {+1.92/33} 111... Ke4 {+0.00/59} 112. Rd7 {+1.92/33} 112... Bg3
{+0.00/59} 113. Rf7 {+1.92/31} 113... Kd4 {+0.00/59} 114. Rg7 {+1.92/29} 114... Be5
{+0.00/59} 115. Rg4+ {+1.92/27} 115... Kd3 {+0.00/59} 116. Rg5 {+1.92/27} 116... Kd4
{+0.00/59} 117. Rg2 {+1.92/24} 117... Bd6 {+0.00/59} 118. Rg4+ {+1.92/21} 118... Kd3
{+0.00/59} 119. Rg7 {+1.92/19} 119... Be5 {+0.00/59} 120. Rg1 {+1.92/18} 120... Kd4
{+0.00/59} 121. Rf1 {+1.92/18} 121... Bd6 {+0.00/59} 122. Rd1+ {+1.92/14} 122... Ke5
{+0.00/59} 123. Re1+ {+1.92/13} 123... Kd4 {+0.00/59} 124. Ka4 {+1.86/13} 124... Be5
{+0.00/59} 125. Ka3 {+1.86/11} 125... Bd6+ {+0.00/59} 126. Ka2 {+0.39/12} 126... Be5
{+0.00/59} 127. Rf1 {+0.15/12} 127... Ke4 {+0.00/59} 128. Kb3 {+0.00/15} 128... Kd4
{+0.00/59} 129. Kb4 {+0.00/19} 129... Ke4 {Draw by fifty-move rule} 1/2-1/2